Dear MySQL Users,

MySQL Cluster Manager 1.4.6 can be downloaded from
the My Oracle Support (MOS) website. It will also be available
on Oracle Software Delivery Cloud at with
the next monthly update

MySQL Cluster Manager is an optional component of the MySQL Cluster Carrier
Grade Edition, providing a command-line interface that automates common
management tasks, including the following online operations:
 - Configuring and starting MySQL Cluster
 - Upgrades
 - Adding and removing cluster nodes
 - Adding and removing site hosts
 - Configuration changes
 - Backup and restore

MySQL Cluster Manager is a commercial extension to the MySQL family of products.
More details can be found at

A brief summary of changes in MySQL Cluster Manager version 1.4.6 is listed below:

Changes in MySQL Cluster Manager 1.4.6   (2018-05-09)

 * Functionality Added or Changed

 * Bugs Fixed

Functionality Added or Changed

     * Agent: The list backups command has been extended with a
       new --agent option for listing agent backups created with
       the backup agents command. See the option description for
details. (Bug #27168819, Bug #27850905)

Bugs Fixed

     * Agent: The collect logs command failed to include logs
       that had been rotated with the rotate log command. (Bug

     * Agent: A list backups command failed with an Error: 1159
(timeout reading communication packets) from one of the
       mcmd agents when it had a huge number of backups to list.
       With this fix, mcmd has been optimized to enumerate a
larger number of backups. (Bug #27868499)

     * Agent: The mcmd agent quit unexpectedly if the cluster's
global configuration file (config.ini usually) contained
       a [system] section. It was because in MySQL Cluster
Manager, the handling for the [system] section was
missing, which has now been added by this fix. The
addition also allows mcmd to set the name attribute in
       the [system] section, which is required for MySQL
Enterprise Monitor 4.0 to monitor the cluster.
       (Bug #27638138, Bug #27519205)

     * Agent: The collect logs command hung if a host was
       referenced earlier with the localhost IP address in the create site or create cluster command.
       (Bug #27551932)

     * Agent: The create cluster command was successful even if
       the format of an IP address submitted with it as a
hostname was inconsistent with the format used earlier
       with the add hosts command (for example, a host was added
       to a site as, and then added to a cluster as
127.0.01). A subsequent attempt to start the cluster
failed. This fix added consistency check for the host
names, so that inconsistent IP addresses are now
rejected. (Bug #27551776)

     * Agent: When a maintenance restart occurred for a cluster
       node while mcmd was shutting down, the node remained in
       the starting stage indefinitely. With this fix, a node
restart will not be attempted when mcmd is shutting down.
       (Bug #27513481)

     * Agent: An Internal error occurred when mcmd tried to set
       the MySQL Server system variable
audit_log_read_buffer_size with a set command. It was
because of the wrong data type used internally for the
variable, which has now been fixed. (Bug #27413635)

     * Agent: mcmd quit unexpectedly sometimes when running a
restore cluster command. It was due to a race condition
       in which mcmd started executing the restore before the
required ndbapi node was ready for the task. This fix
       added checks to eliminate the race condition. (Bug

On behalf of MySQL Release Engineering Team,
Surabhi Bhat

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